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authorCyrille Pitchen <cyrille.pitchen@free-electrons.com>2018-01-30 23:56:58 +0300
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2018-01-31 14:10:55 +0300
commit6618f4d3f5d614d5cd4cbc4e81f0fef8e22a36c7 (patch)
tree32f567efb52f131296bd04997fa228e91fa0648b /Documentation/devicetree/bindings/pci
parentfc41df28f89e9d93deb4f0930cb0fb7eec26e5b4 (diff)
downloadlinux-6618f4d3f5d614d5cd4cbc4e81f0fef8e22a36c7.tar.xz
dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe endpoint controller
This patch documents the DT bindings for the Cadence PCIe controller when configured in endpoint mode. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/pci')
-rw-r--r--Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt22
1 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt
new file mode 100644
index 000000000000..9a305237fa6e
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt
@@ -0,0 +1,22 @@
+* Cadence PCIe endpoint controller
+
+Required properties:
+- compatible: Should contain "cdns,cdns-pcie-ep" to identify the IP used.
+- reg: Should contain the controller register base address and AXI interface
+ region base address respectively.
+- reg-names: Must be "reg" and "mem" respectively.
+- cdns,max-outbound-regions: Set to maximum number of outbound regions
+
+Optional properties:
+- max-functions: Maximum number of functions that can be configured (default 1).
+
+Example:
+
+pcie@fc000000 {
+ compatible = "cdns,cdns-pcie-ep";
+ reg = <0x0 0xfc000000 0x0 0x01000000>,
+ <0x0 0x80000000 0x0 0x40000000>;
+ reg-names = "reg", "mem";
+ cdns,max-outbound-regions = <16>;
+ max-functions = /bits/ 8 <8>;
+};